public IHttpActionResult DietEdit(DietEdit model)
        {
            if (model is null)
            {
                return(BadRequest("Your request body cannot be empty. "));
            }
            if (ModelState.IsValid)
            {
                var edited = dietService.EditADiet(model);
                if (edited == true)
                {
                    return(Ok());
                }
                else
                {
                    return(BadRequest("Your diet could not be edited. Please try again. "));
                }
            }

            return(BadRequest(ModelState));
        }